Headset



FIG. 1 is a front, top, right perspective view of a headset, showing our new design;

FIG. 2 is rear, bottom, left perspective view thereof;

FIG. 3 is rear, top, left perspective view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of the headset that form no part of the claimed design. 

CLAIM The ornamental design for a headset, as shown and described. 